Ducati 48/1& 50/1 Brisk

 

 

 

Make Model.

Ducati 48/1 & 50/1 Brisk

Year

48/1: 1961 - 66
50/1: 1967

Engine

Two-stroke, single cylinder, piston port

Capacity

47.6 cc / 2.9 cu in
Bore x Stroke 38 x 42 mm

Compression Ratio

6.3:1 (from 1963: 7:1)

Cooling System

Air cooled

Induction

Dell'Orto T4 12D1

Spark Plug

Marelli CW 225N

Ignition

6V 18W flywheel magneto

Starting

Kick

Max Power

1.0 kW / 1.34 hp @ 4200 rpm (from 1963: 1.1 kW / 1.5 hp @ 5200 rpm)

Clutch

Wet, multiplate

Transmission

Single speed

Final Drive

Chain
Frame Pressed steel

Front Suspension

Telescopic fork

Rear Suspension

Swingarm, dual shocks

Front Brakes

Drum, 90 mm

Rear Brakes

Drum, 90 mm

Front Wheel

2.00 x 18

Rear Wheel

2.00 x 18

Dry Weight

48/1: 45 kg / 99 lbs
50/1: 50 kg / 110 lbs

Top Speed

40 km/h / 25 mph

The 48cc Brisk was introduced in 1961 and was sold (mainly in the domestic market) until 1965. It had but a single speed and the 2-stroke engine put out 1.3hp at 4,250rpm giving the 40kg bike a top speed of 40kph. The tubular frame was replaced by a pressed steel design in 1962.

In 1967 the Brisk 50/1 was introduced (as seen here). Changes were mostly cosmetic with a rectangular tank, angular front mudguard and a small square-bodied headlight. A single or dual seat was available.

Text and Photos: Phil Aynsley